參數(shù)資料
型號(hào)： MC34923
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： Full-Bridge PWM Motor Driver(全橋PWM電機(jī)驅(qū)動(dòng)器)
中文描述： 全橋PWM電動(dòng)機(jī)驅(qū)動(dòng)器（全橋脈寬調(diào)制電機(jī)驅(qū)動(dòng)器）
文件頁(yè)數(shù)： 3/16頁(yè)
文件大?。?/td> 508K
代理商： MC34923
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
34923
3
.
PIN FUNCTION DESCRIPTION
Pin
Pin Name
Formal Name
Definition
1
V
B
Boost Voltage
Boost voltage storage node.
2
CP2
Switching Capacitor 2
Charge pump capacitor connection 2.
3
CP1
Switching Capacitor 1
Charge pump capacitor connection 1.
4
DIR
Direction
Logic-level input for direction control.
5
OSC
Oscillator
Logic-level oscillator (square wave) input.
6, 7, 18, 19
GND
Ground
Ground.
8
V
DD
Logic Voltage
Low voltage (typically 5.0 V) logic supply.
9
PWM/ENABLE
H-Bridge Enable
Logic-level input for enabling the H-bridge driver.
10
DATA
Serial Data
Logic-level input for serial interface.
11
CLOCK
Serial Data Clock
Logic-level input for serial port (data is entered on rising edge).
12
STROBE
Serial Data Latch Strobe
Logic-level input for serial port (active on rising edge).
13
V
REF
Current Limit Reference
Voltage
Load current reference input voltage.
14
PWMMODE
PWM Mode Control
Logic-level input for PWM mode control when in internal PWM mode.
15, 22
NC
No Connect
No internal connection to this pin.
16
DCMA
H-Bridge Output A
One of two bridge outputs to the motor.
17
SENSE
Current Sense
Sense resistor.
20
V
BB
H-Bridge Voltage Supply
High-current (20 V to 45 V) load supply.
21
DCMB
H-Bridge Output B
One of two bridge outputs to the motor.
23
SPAN
Current Limit Reference Range
Logic-level input for V
REF
range control.
24
V
REG
Bandgap Voltage
Bandgap decoupling capacitor.
5
6
7
8
9
10
11
12
2
3
4
24
20
19
18
17
16
15
13
23
22
21
14
1
V
REG
SPAN
NC
DCMB
V
BB
GND
GND
SENSE
DCMA
NC
PWMMODE
V
REF
V
B
OSC
GND
GND
V
DD
PWM/ENABLE
DATA
CLOCK
STROBE
CP2
CP1
DIR
F
Freescale Semiconductor, Inc.
Go to: www.freescale.com
n
.
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